buffered I/O channel

buffered I/O channel

[′bəf·ərd ¦ī¦ō ‚chan·əl]
(computer science)
A storage device located between input/output (I/O) channels and main storage control to free the channels for use by other operations.
McGraw-Hill Dictionary of Scientific & Technical Terms, 6E, Copyright © 2003 by The McGraw-Hill Companies, Inc.